AS19957

AT&T Enterprises, LLC

AS 19957 STATE-OF-TENNESSEE-NETTN

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

420,352 IP addresses
ASN19957
NameSTATE-OF-TENNESSEE-NETTN
OrganizationAT&T Enterprises, LLC
CountryUnited States  
RegistryARIN
IPv4 addresses420,352
IPv6 /64 networks1.22 x 228
Prefixes55
Other ASN allocated to AT&T Enterprises, LLC
ASN Name IP addresses
7018 ATT-INTERNET4 110,418,433
20057 ATT-MOBILITY-LLC-AS20057 7,554,304
6389 BELLSOUTH-NET-BLK 5,048,064
14654 WAYPORT 1,806,848
7287 PBI-NET-BLK2 445,184
6431 ATT-RESEARCH 398,848
2386 INS-AS 313,088
4185 ATTIS-ASN4185 201,472
4473 ATTIS-ASN4473 144,896
13979 ATT-IPFR 83,460
25993 ATT-LABS-AUSTIN-TX 50,688
4466 EASYLINK2 29,952
13965 SBCIS-FYTVAR 4,096
3423 ATTIS-ASN3423 3,328
4468 EASYLINK4 1,536
6269 ATT-INTERNET2 1,280
5728 WORLDNET1 512
16961 HIPCS-DALLAS-SERVER-OFFICE 512
4186 ATTIS-ASN4186 256
19540 ATT-MOBILITY-LLC-AS19540 0
13964 SBCIS-TPKAKS 0
13422 SBCIS-BUMTTX 0
13421 SBCIS-ABLNTX 0
13420 SBCIS-LUBKTX 0
19956 STATE-OF-TENNESSEE-NETTN 0
11026 ATTIS-ASN11026 0
27522 ATT-MOBILITY-LLC-AS27522 0
7294 SBIS-BLK 0
16963 HIPCS-SOUTHFIELD-ACCESS-OFFICE 0
17258 ATT-MOBILITY-LLC-AS17258 0
14247 SBIS-WACOTX 0
16962 HIPCS-IRVINE-ACCESS-OFFICE 0
16964 HIPCS-NEW-YORK-ACCESS-OFFICE 0
16959 SBIS-AMRLTX 0
16572 ATT-MOBILITY-LLC-AS16572 0
16473 STATE-OF-TENNESSEE-NETTN 0
16965 SBIS-SPFDMO 0
16966 SBCIDC-LSAN03 0
16967 SBCIDC-DLLSTX 0
46164 ATT-MOBILITY-LABS 0
7286 PBI-NET-BLK2 0
7222 SBIS-KCSYMO 0
5103 ATTIS-ASN5103 0
5102 ATTIS-ASN5102 0
5002 BBSATLGA 0
4990 ATTIS-ASN4990 0
4467 EASYLINK3 0
4465 EASYLINK1 0
3448 ATTMO-3-AS 0
3422 ATTIS-ASN3422 0
3421 ATTIS-ASN3421 0
3420 ATTIS-ASN3420 0
1838 CERFNET-2 0
1740 CERFNET 0
5104 ATTIS-ASN5104 0
5105 ATTIS-ASN5105 0
7132 SBIS-AS 0
6478 ATT-INTERNET3 0
5730 WORLDNET3 0
6385 BELLSOUTH-NET-BLK 0
6384 BELLSOUTH-NET-BLK 0
6383 BELLSOUTH-NET-BLK 0
6382 BELLSOUTH-NET-BLK 0
6381 BELLSOUTH-NET-BLK 0
5731 5731 0
5729 WORLDNET2 0
5727 WORLDNET-0 0
5107 ATTIS-ASN5107 0
1698 PRODIGY 0
IPv4 Prefixes for AS19957 - showing the first 20 of 42 networks
Network Location Addresses
12.204.192.0/20 AT&T Enterprises, LLC   Nashville (Downtown) 4,096
12.204.201.0/24 AT&T Enterprises, LLC   Nashville (Downtown) 256
12.204.206.0/24 AT&T Services   Nashville (Downtown) 256
12.204.208.0/20 AT&T Services   Knoxville 4,096
12.204.208.0/24 AT&T Services   Knoxville 256
12.204.209.0/24 AT&T Services   Knoxville 256
12.204.216.0/21 AT&T Services   Knoxville 2,048
170.141.56.0/23 AT&T Enterprises, LLC   New York 512
170.141.60.0/23 AT&T Enterprises, LLC   New York 512
170.142.0.0/16 State of Tennessee   Nashville 65,536
170.143.0.0/16 State of Tennessee   Nashville 65,536
198.146.0.0/16 AT&T Enterprises, LLC   Nashville (Donelson) 65,536
206.23.0.0/16 AT&T Enterprises, LLC   Nashville (Donelson) 65,536
208.182.0.0/16 AT&T Enterprises, LLC   Nashville (North Capitol) 65,536
208.182.101.0/24 AT&T Enterprises, LLC   Nashville (North Capitol) 256
208.182.124.0/24 AT&T Enterprises, LLC   Nashville (North Capitol) 256
208.63.128.0/20 AT&T Corp.   Nashville (Downtown) 4,096
208.63.128.0/24 AT&T Corp.   Nashville (Downtown) 256
208.63.129.0/24 AT&T Corp.   Nashville (Downtown) 256
64.79.176.0/21 Southwest Tennessee Community College   Chicago 2,048
IPv6 Prefixes for AS19957
Network Location /64 Prefixes
2604:f980:2100::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:2500::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:2600::/40 AT&T Enterprises, LLC   Nashville (Downtown) 224
2604:f980:2d00::/40 AT&T Enterprises, LLC   Nashville (Downtown) 224
2604:f980:3000::/36 AT&T Enterprises, LLC   Nashville (Downtown) 228
2604:f980:4240::/44 AT&T Enterprises, LLC   Nashville (Downtown) 220
2604:f980:4300::/44 AT&T Enterprises, LLC   New York 220
2604:f980:4360::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:4380::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:4390::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:4480::/44 AT&T Enterprises, LLC   Nashville (Downtown) 220
2604:f980:4500::/44 AT&T Enterprises, LLC   Ashburn 220
2604:f980:5100::/40 AT&T Enterprises, LLC   Nashville (Downtown) 224